Door-controlling and signaling system.



M. M. HUEBSCH.

DOOR CONTROLLING AND SIGNALING SYSTEM.

APPLICATION FILED JUNE :3. 1914.

1 ,2 1 7, 1 80. Patented Feb. 27, 1917.

2 SHEETS-SHEET 1- Q WITNESSES 17 INVENTOR 1 MARCUS M, HUEBSCH M4W WATTYS M. M. HUEBSCH.

DOOR CONTROLLING AND SIGNALING SYSTEM.

APPLICATION FILED JUNE 13. 1914.

' 2 SHEETS-SHEET 2- 5 26 F .6 L I Patented Feb. 27, 1917.

' INVENTOR MARCUS M.HUEBSCH BY .ATT YS Ey- WITNESSES 'Ifi 'MAncUsM.nonnscn,

OF CHICAGO ILLINOIS.

I DOOR-CONTROLLING AND SIGNALING SYSTEM.

Specification of Letters Patent. Patented Feb, 2'? 1917,

Application filed June 13, 1914. Serial No. 844,858.

To all whom it may concern:

Be it known that I, MARCUS M.. a citizen of the United States, residingat 4:814.- Champlain avenue, Chicago, the county of Cook and State ofIllinois, have invented a certain new and useful Improvement inDoor-Controlling and Signaling Systems, of which the following is afull,

clear, concise, and exact description, reference being had to theaccompanying drawings, forming a part of this specification.

My invent on relates to a door controlling and signaling system.

Systems for controlling the unlocking of doors from a remote point haveheretofore been known, but these systems have been operated at a greatdisadvantage, inasmuch as the operator is unable to ascertain theconditionand operation of the parts of the system, and unsatisfactoryservice has resulted.

With the limitation of the prior are in mind, the present invention hasbeen conceived with the object of combining a signaling system with thecontrol system.

Another object of the invention is to provide an improved controlcabinet or panel to house the terminal-parts of the system.

A further object is to provide a combined call and. control system ofimproved and simplified construction. 7

Other and incidental bjects will become apparent as the description ofmy invention proceeds.

.In the operation of electrically actuated door controlling systemsheretofore known the operator has been unable to ascertain,

.first whether the system be in proper operative condition, secondwhether manipulation of the control mechanism actually results in oening of the door, and third, whether, a er the doorfwere once opened,it be properly closed again.

My inventlon provides means for informing the operator on the above andother points.

The invention will now be briefly described in connection .with theaccompany ing drawings. Figure 1 is a front elevation, with parts brokenaway, of the control panel;

Fig. 2 is a section'on the line 22 of Fig. 1, looking in the directionof the arrow;

Fig. 31s a view of one end of the outlet box, the cover plate, thereof,being removed;

HUEBSOH,

Fig. 4 is .a-rear. view of the cover plate with the edges thereof brokenaway; Fig. 5 is a view of the door switch;

Fig. 6 is a view of the door unlocking magnet and mechanism;

Fig. 7 is a diagram of the electrical cir-.

cuits employed. I

The control panel 1, shown in Fig. 1, is located at some convenientpoint in the interior of the buildin and is connected to the door bymeans 0 a speaking tube, the mouth-piece 2 of which terminates on thecontrol panel 1, as shown in Fig. 1. A signal, in this case shown as anelectric bell 3, is controlled by a push button at the door to notifythe operator that entry through the door is desired. Communication maybe had through the speaking tube and the operator may release thelocking of the door by depressing the push button 4 located on thecontrol panel.

The control panel 1 comprises a cover plate 5 and a terminal or outletbox 6 which is let into the wall so that the cover plate 5 may be flushwith the Wall. The outlet box 6 is an open sheet metal box formed bybending up' the edges of a sheet metal plate and securing the sides andends together by means of an angle clip 7 at each end of the box. Thisangle clip has extending ears 8 which are bent to inclose the end of thebox and to be attached to the sides of the same. I In this manner theends and sides of the box are secured together without the formation ofany seams in the corners of the box. The depending portion of the angleclip 7 is attached to the end wall 9 of the box and the other portion ofthe clip. is flush with the open end of the box and serves to secure thebox to the wall into which it is set and to provide also a' mounting forthe cover plate 5.

An aperture 10 is cut in the bottom of the box to allow the speakingtube 12 to connect with the mouth-piece 2- mounted on the cover plate 5.

A suitable insulated bushing 13, shown in dotted lines in Fig. 3,provides an outlet for the electrical connections to the various partsmounted in the box and on the cover plate. A lamp socket 14 is mountedin the outlet box in such a position that the incandescent bulb. 15 willbe positioned behind the crystal 16 so that when the lamp bination withan audib selves to those skilled in the art, all of which I consider tocome within the spirit and scope of the resent invention.

What I claim as new and desire to secure 8 by Letters Patent of theUnited States is:

1. In a door unlocking system, a release magnet at the door, a pushbutton at a oint remote from said door and a circuit including a sourceof current, said circuit 10 connected to said push button and saidrelease magnet, a signal in series with said magnet and means controlledby opening of the door for displaying said signal.

2. In a door controllin system, the coma alarm operable from a remotepoint, an electromagnetically controlled look, a source of energy, acircuit closer to release said lock, of a visual signal arranged inseries with the lock electromagnet and a shunting circuit closer toshort circuit said 'visual signal when the door isopened to indicatesuch movement ofthe door.

3. The combination with a door lock opfi erable by an electromagnet anda circuit iniwhich said magnet is interposed, of a source of electricalenergy, a circuit closer, an audible alarm operable from a point remotethereto, a visual signal arranged in series with the electromagnet, ashunt circuit interposed between the source of energy and saidelectromagnet, a circuit closer in terposed in saidshunt circuit andoperable by the door, whereby when the door is open said shunt circuitwill be closed and said visual signal short circuited.

4. In a door lock control, the combination with a door lock, anelectromagnet to control the lock, a circuit in which said magnet isinterposed, and a source of energy, of a circuit closer to admit currentto the electromagnet to unlock the door, a visual signal. in series withthe electromagnet, an audible alarm receiving current from said sourceand operable from a remote point, a shunt circuit bridging the visualsignal, and a circuit closer interposed in said circuit and operable bythe door to short circuit said signal when the door is opened.

5. In a door lock control, the combination with a lock, an electromagnetoperatively associated therewith, and a source of electric energy, of amain having a circuit closer therein controlling energization of saidelectromagnet, afvisual signal interposed in series with theelectromagnet, a branch conductor having an audible alarm therein, ashunt conductor between the electromagnet and the visual signal andconnected to the source of supply to furnish a current return of lessresistance than the audible signal,..-'and a circuit closer in saidshunt conductor to close the latter when the door is in closed positionand thereby short circuit the visual signal.

In witness whereof, I hereunto subscribe my name this 6th day of June,A. D. 1914.

MARCUS M. HUEBSCH. Witnesses:

LESLIE W. FRIGKE, ERNEs'r W. RAPALEE.

